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arXiv · 2208.09019

Quantum Theory of the Classical: Einselection, Envariance, Quantum Darwinism and Extantons

Wojciech Hubert Zurek
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Abstract

Core quantum postulates including the superposition principle and the unitarity of evolutions are natural and strikingly simple. I show that -- when supplemented with a limited version of predictability (captured in the textbook accounts by the repeatability postulate) -- these core postulates can account for all the symptoms of classicality. In particular, both objective classical reality and elusive information about reality arise, via quantum Darwinism, from the quantum substrate.

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Wojciech Hubert Zurek. 2022-08-18. Quantum Theory of the Classical: Einselection, Envariance, Quantum Darwinism and Extantons. https://doi.org/10.3390/e24111520

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